Country, region and language selection

International websites


Americas / Oceania

Africa and Middle East

Asia / Pacific

SISTO-C Diaphragm valve

Diaphragm valveSISTO-C

Diaphragm valve with butt weld ends or clamps; in straight-way, Y or T pattern, or as a multi-port valve; shut-off and sealing to atmosphere by confined and supported diaphragm. No dead volumes, suitable for sterilisation, SIP/CIP-compliant design, position indicator. All moving parts are separated from the fluid by the diaphragm. Maintenance-free.
See all documents and downloads

Main Applications

  • Chemical industry
  • Homogenisation
  • Food industry / beverage industry
  • Pharmaceutical industry

Technical Data

  • Nominal pressurePN 16
  • Max. nominal sizeDN 100
  • Max. allowed fluid temperature160 °C

Your KSB contact: We’re here to support you

Do you need any assistance finding the right material number?
We’ll soon provide a list so you can directly place your purchase order.
Meanwhile please contact our support:

Tel: +86 4000218000

Your KSB contact : We’re here to support you


  • Reliable sealing ensured by one single sealing element (the diaphragm) which provides hermetic sealing to atmosphere and absolutely tight shut-off. The specially enclosed diaphragm ensures long service life and high operating reliability.
  • Special design: All moving parts are separated from the fluid by the diaphragm.
  • Compact valve design with integrated actuator requires minimal space.

Technical Data

  • FunctionShut off/control flow
  • Connection typeClamped connection,
    Butt weld ends
  • Design concept DriveWith handwheel,
    With pneumatic actuator
  • Casing materialX1NICRMOCU25-20-5,
  • Nominal pressurePN 16
  • Max. nominal sizeDN 100
  • Min. nominal sizeDN 6
  • Max. allowed fluid temperature160 °C
  • Min. allowed fluid temperature-20 °C

Sectional Drawings

  • Download
  • Download
  • Download


Last change
FICHE TECHNIQUE - SISTO-C (8644.021_EN)PDF1.8312/3/2021